Adding mimetypes for m4a and m4b
Adding mimetypes for m4a and m4b

andreas-p/nextcloud-server,endsguy/server,endsguy/server,IljaN/core,pixelipo/server,owncloud/core,pollopolea/core,bluelml/core,jbicha/server,pollopolea/core,pmattern/server,jbicha/server,pollopolea/core,pollopolea/core,whitekiba/server,cernbox/core,IljaN/core,michaelletzgus/nextcloud-server,andreas-p/nextcloud-server,owncloud/core,phil-davis/core,xx621998xx/server,whitekiba/server,nextcloud/server,michaelletzgus/nextcloud-server,Ardinis/server,bluelml/core,xx621998xx/server,cernbox/core,Ardinis/server,cernbox/core,cernbox/core,xx621998xx/server,whitekiba/server,IljaN/core,michaelletzgus/nextcloud-server,owncloud/core,pollopolea/core,pmattern/server,andreas-p/nextcloud-server,pixelipo/server,Ardinis/server,pmattern/server,sharidas/core,whitekiba/server,nextcloud/server,cernbox/core,owncloud/core,sharidas/core,sharidas/core,IljaN/core,michaelletzgus/nextcloud-server,endsguy/server,jbicha/server,whitekiba/server,pmattern/server,Ardinis/server,Ardinis/server,bluelml/core,endsguy/server,jbicha/server,sharidas/core,nextcloud/server,pixelipo/server,andreas-p/nextcloud-server,bluelml/core,andreas-p/nextcloud-server,pixelipo/server,sharidas/core,endsguy/server,xx621998xx/server,IljaN/core,owncloud/core,nextcloud/server,pixelipo/server,xx621998xx/server,bluelml/core,jbicha/server,pmattern/server